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  <title>使脚本睡眠到指定的时间为止。</title>

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</div><hr /><div id="function.time-sleep-until" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">time_sleep_until</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0)</p><p class="refpurpose"><span class="refname">time_sleep_until</span> &mdash; <span class="dc-title">
   使脚本睡眠到指定的时间为止。
  </span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.time-sleep-until-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>time_sleep_until</strong></span>
    ( <span class="methodparam"><span class="type">float</span> <code class="parameter">$timestamp</code></span>
   )</div>

  <p class="para rdfs-comment">
   使脚本睡眠到指定的
   <em><code class="parameter">timestamp</code></em>。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.time-sleep-until-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">timestamp</code></em></dt>

     <dd>

      <p class="para">
       将脚本唤醒的时间戳。
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.time-sleep-until-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>

 
 <div class="refsect1 changelog" id="refsect1-function.time-sleep-until-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>5.3.0</td>
       <td>
        自此，函数在Windows平台可用。
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-function.time-sleep-until-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   如果设定的 <em><code class="parameter">timestamp</code></em> 为过去的时间，脚本将会产生一个 <strong><code>E_WARNING</code></strong> 级别的错误。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.time-sleep-until-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3694">
    <p><strong>Example #1 <span class="function"><strong>time_sleep_until()</strong></span> 的一个例子</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #FF8000">//returns&nbsp;false&nbsp;and&nbsp;generates&nbsp;a&nbsp;warning<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">time_sleep_until</span><span style="color: #007700">(</span><span style="color: #0000BB">time</span><span style="color: #007700">()-</span><span style="color: #0000BB">1</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">//&nbsp;may&nbsp;only&nbsp;work&nbsp;on&nbsp;faster&nbsp;computers,&nbsp;will&nbsp;sleep&nbsp;up&nbsp;to&nbsp;0.2&nbsp;seconds<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">time_sleep_until</span><span style="color: #007700">(</span><span style="color: #0000BB">microtime</span><span style="color: #007700">(</span><span style="color: #0000BB">true</span><span style="color: #007700">)+</span><span style="color: #0000BB">0.2</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-function.time-sleep-until-notes">
  <h3 class="title">注释</h3>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <span class="simpara">
    所有的信号会被延迟至脚本唤醒以后。
   </span>
  </p></blockquote>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.time-sleep-until-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.sleep.html" class="function" rel="rdfs-seeAlso">sleep()</a> - 延缓执行</span></li>
    <li class="member"><span class="function"><a href="function.usleep.html" class="function" rel="rdfs-seeAlso">usleep()</a> - 以指定的微秒数延迟执行</span></li>
    <li class="member"><span class="function"><a href="function.time-nanosleep.html" class="function" rel="rdfs-seeAlso">time_nanosleep()</a> - 延缓执行若干秒和纳秒</span></li>
    <li class="member"><span class="function"><a href="function.set-time-limit.html" class="function" rel="rdfs-seeAlso">set_time_limit()</a> - 设置脚本最大执行时间</span></li>
   </ul>
  </p>
 </div>

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